Bixa orellana
Images by part: leaf (5) · flower (5) · fruit (5) · bark (5) · habit (5) · other (5)

Bixa orellana

Lipstick tree · Achiote · Annatto · Arnatto · Roucou

Tier 1 Difficulty: easy Water: low Light: full_sun Toxicity: low
Water every
7 days
Temperature
20–37 °C
Soil pH
6–7
Hardiness
Zone 10–12
Click count
217
Observations
957

Description

Source: leafsnap

Bixa orellana, commonly known as annatto or achiote, is a tropical plant native to South America, now widely cultivated around the world. This plant typically grows as a small tree or shrub, reaching up to 10 meters in height. It features distinctive heart-shaped leaves and clusters of pink flowers that develop into spiky red fruits. The seeds within these fruits are covered in a bright red-orange pulp, which has been used for centuries as a natural dye for food and textiles. Beyond its role as a coloring agent, Bixa orellana boasts several medicinal properties. The pulp contains high levels of carotenoids such as bixin and norbixin, which possess antioxidant properties that can help protect against cellular damage caused by free radicals. Additionally, it contains antimicrobial compounds that have been shown to inhibit the growth of certain bacteria. In traditional medicine practices worldwide, Bixa orellana has been employed to treat a variety of ailments, including fever, diarrhea, dysentery, and respiratory infections. Recent studies have also highlighted its potential in cancer treatment due to its ability to induce apoptosis (programmed cell death) in cancer cells. Overall, Bixa orellana is a versatile and important plant with numerous cultural and medicinal applications, making it a vital part of many communities around the globe today.

🌳 The fruit pods of the lipstick tree contain annatto, a natural pigment widely used in the food industry to color cheeses, butter, and snacks. Beyond culinary uses, it is also applied in cosmetics and textiles. Surprisingly, indigenous tribes have used it as a natural sunscreen and insect repellent, making the lipstick tree a versatile plant with multiple uses across cultures around the world.

Care Guide

💧 Water Every 7 days

The lipstick tree thrives in its native tropical environment, where there is consistent moisture and high humidity. It needs weekly watering to keep the soil evenly moist and grows best outdoors. Natural rainfall and seasonal changes in temperature and humidity, which reflect its origins, contribute to its flourishing.

Suggested frequency: Every 7 days
FAQ
How should I water my Lipstick tree?

When watering your Lipstick tree, you can use various common tools like watering cans, hoses, or even cups. It's important to apply the water directly to the soil and make sure all areas are evenly moistened to provide adequate water for the entire root system. It's beneficial to use filtered water to avoid harmful particles, and water that is at or slightly above room temperature to prevent any shock to the plant. However, the Lipstick tree typically responds well to any type of water.

What should I do if I give too much or too little water to my Lipstick tree?

For outdoor plants, particularly new or young ones, lack of watering can be a problem. It is crucial to keep watering them consistently for a few months, especially when they are small or recently planted. This is because once the roots are established, Lipstick trees can mostly rely on rain. When your Lipstick tree is planted in pots, overwatering is more likely. If you accidentally overwater your Lipstick tree, you should take immediate action to fix the situation. First, stop watering the plant immediately to minimize the negative effects of overwatering. Then, carefully remove the Lipstick tree from its pot to inspect its roots. If no root rot is found, you can place the plant back in its container. However, if root rot is present, trim away the affected roots and consider applying a fungicide to prevent further damage. Finally, replant the Lipstick tree in well-draining soil. In the case of underwatered Lipstick trees, simply water them more frequently. Underwatering is usually an easy problem to solve. If a Lipstick tree is underwatered, its leaves may droop, dry out, and fall off. Proper watering will quickly restore their fullness. Therefore, it is important to correct your watering frequency as soon as you notice underwatering.

How much water does my Lipstick tree need?

Most naturally-growing outdoor plants only require rainfall for their normal growth. However, if your area is lacking in rainfall, you should consider providing adequate watering to your plants every 2 weeks in the spring and fall. In the summer, more frequent watering is necessary, while in the winter, when growth is slower and water needs are reduced, you should water sparingly or not at all. If you have a young or newly planted Lipstick tree, it is important to water it more frequently to help it establish and grow. As it matures, it will become more adaptable and drought tolerant. For potted plants, there are two main approaches to determine watering frequency for your Lipstick tree. The first is to follow a predetermined watering schedule, typically once every week or every other week. However, this approach may not consider the specific conditions of your Lipstick tree's growing environment. Another option is to adjust the watering frequency based on the moisture level of the soil. It is generally recommended to wait until the top two to four inches of soil (around 1/3 to 1/2 depth of the pot) have completely dried out before watering again. This method allows for adaptation to different seasons, as the water needs of the plant are highest during summer.

How much water should I give my Lipstick tree?

Watering the Lipstick tree is not always a high-volume task. If only a few inches of soil have dried since the last watering, you can give it about five to ten ounces of water. You can also base your water volume on the moisture of the soil. To ensure the tree gets enough moisture, water until all dry layers of soil are moistened. If over half of the soil is dry, water more than usual and continue until excess water drains from the pot. If the tree is in a rainy area outdoors, additional watering may not be necessary. When the tree is young or establishing, aim for 1-2 inches of rain per week. Once it has grown, it can rely on rainwater unless there is a prolonged dry period, in which case a full watering is needed to prevent stress.

How can I know if I'm giving enough water to my Lipstick tree?

The Lipstick tree is often overwatered, which leads to certain signs you should watch for. Usually, an overwatered Lipstick tree will have yellowing leaves and may drop some leaves. Additionally, overwatering can cause the plant to shrivel and promote root rot. On the flip side, an underwatered Lipstick tree will also start to wilt and may have browning or brittle leaves. In either case, it's important to act and restore the tree's health.

☀️ Light Full sun

The lipstick tree favors sites with plenty of sunlight, though it can tolerate light shade. Native to regions where strong sun is typical, both too much and too little light can cause plant stress or lead to unintended growth problems, respectively.

Ideal: Full sun
FAQ
What are the sunlight requirements for the Lipstick tree?

The Lipstick tree (Bixa orellana) thrives in areas with an abundance of sunlight but can also tolerate mild shade. The plant's native habitat is accustomed to ample sun, making it preferential to full sun conditions, defined as more than 6 hours of sunlight daily, or partial sun, which consists of about 3-6 hours of sunlight. It's essential to observe how sunlight moves through your garden to ensure your plants receive the right balance of light and shade, promoting their well-being and growth.

How does artificial lighting support the growth of indoor Lipstick trees?

For indoor Lipstick trees and other plants that lack sufficient natural sunlight, especially during winter or in less sunny spaces, artificial lighting becomes crucial. LED lights, which can be adjusted to provide specific light wavelengths needed by plants, are recommended. The artificial lighting's intensity should match the plants' sunlight needs: 30-50W/sq ft for full sun plants, 20-30W/sq ft for partial sun plants, and 10-20W/sq ft for full shade plants. The light source should be placed 12-36 inches above the plant, simulating natural sunlight for about 8-12 hours per day to promote healthier, more robust growth.

What are common symptoms of insufficient light in Lipstick trees?

When Lipstick trees are cultivated in poorly lit conditions, especially indoors during winter, several symptoms might occur indicating light deficiency. These include small, undersized new leaves; leggy or sparse growth creating a thin, stretched appearance; early shedding of older leaves to conserve energy; halted or significantly slowed growth; lighter-colored or pale new leaves signifying a lack of chlorophyll; and conditions such as chlorosis (leaf yellowing), sunscald (damage from intense light), leaf curling (a defense against excessive sunlight), wilting (loss of turgor pressure), and leaf scorching (browned, crispy leaf edges). These signs alert the gardener to adjust the plant's light exposure.

What solutions can address the Lipstick tree's light deficiency?

To mitigate light deficiency in Lipstick trees, there are several strategies. Indoors, it's advisable to move plants gradually to sunnier spots until they get at least 6 hours of direct sunlight, using a south-facing window for optimal exposure. Adding artificial lighting for large or immovable plants is another option to ensure 8 hours of light, mimicking natural sunlight conditions. Outdoors, the strategy involves gradual relocation to sunnier areas to prevent sunburn, allowing plants to adapt smoothly. Additionally, reducing obstructions such as pruning trees to allow more sunlight and, for smaller plants, considering transplantation during the dormant period to locations with adequate sunlight and good drainage are recommended steps. However, note that parts of the plant that have already been affected might not recover, but subsequent new growth should be healthy with adjusted light exposure.

🌡️ Temperature 20–37.8°C

The lipstick tree originates from warm climates and does best in temperatures of 68 to 100°F (20 to 38℃). It favors stable temperatures, so be alert for sudden drops, particularly during colder seasons.

Ideal temperature: 20–37.8°C
FAQ
What is the ideal temperature range for growing a Lipstick tree?

The Lipstick tree (Bixa orellana) thrives in warm environments, with an ideal temperature range between 68 to 100°F (20 to 38°C). It requires a consistent temperature to grow well and is vulnerable to sudden temperature drops, particularly in colder seasons. Hence, maintaining temperatures above 20°C, especially during winter, is crucial for the health of the plant. It's recommended to protect the plant from cold by bringing it indoors in autumn and placing it near a bright window, away from direct heat sources.

How do low temperatures affect the Lipstick tree, and what are the solutions?

Lipstick trees prefer warm temperatures and struggle in low temperatures. They thrive best when the temperature is consistently above 20°C. If the temperature falls below this threshold, especially during winter, keeping it above 5°C is essential. Exposure to temperatures below 1°C can lead to lighter leaf colors, wilting, drooping, and eventual browning or blackening after frost damage. To combat cold damage, trim off the frost-damaged parts and move the plant to a warmer indoor environment. Place it near a south-facing window for ample sunlight, but keep it away from heaters or air conditioning vents to avoid air dryness.

What should be done if a Lipstick tree is exposed to high temperatures?

During the hotter months, it's important to ensure that the Lipstick tree is not subjected to temperatures above 100°F (38°C). Exposure to temperatures over 110°F (43°C) can cause the leaves to lighten and increase the risk of sunburn. If this occurs, trim away the sunburnt and dried parts of the plant. Relocate the Lipstick tree to a shaded area during the intense midday and afternoon sun. Adequate watering in the morning and evening is also crucial to keep the soil consistently moist and help the plant cope with the heat.

💨 Humidity
Humidity:
🪴 Soil 6-7
Soil pH: 6-7
🌱 Fertilizer

The best time to fertilize a Lipstick tree is in early spring, as it comes out of dormancy. This supports overall growth and flower development. Fertilization improves the foliage, stems, and branches, and encourages flowers that are larger, more vivid, and longer-lasting. It also helps transport nutrients from the roots to the blooms and boosts the plant's health and resistance to disease.

FAQ
Why should I put fertilizer on my Lipstick tree?

Regular fertilization is necessary for Lipstick trees because they have showy leaves that require a significant amount of energy to produce and maintain. It is challenging for the tree to allocate enough energy not only to keep its leaves healthy but also to support the growth of its stems, branches, roots, and other vital structures. Neglecting fertilization can lead to two likely outcomes. First, the leaves may lose their natural color and texture, overall appearing unhealthy and diminishing the tree's ornamental appeal. Second, the tree's overall growth may slow down or produce weak growth that is susceptible to breakage.

When should I fertilize my Lipstick tree for best results?

To ensure the growth and health of your Lipstick tree, it is best to feed it occasionally rather than having a set feeding schedule. One simple way to fertilize the plant is by applying the fertilizer while watering it from time to time. Additionally, during the growing season, the tree will require a sufficient amount of water. It is recommended to feed the plant every two to three weeks throughout the period of new growth.

When is the best time to not add fertilizer to my Lipstick tree?

For most of the year, you can stick to a regular fertilization schedule for your Lipstick tree. This should be done during the active growing season of spring, summer, and early fall. However, it's important to note that during winter, you should avoid fertilizing the plant altogether. This is because the Lipstick tree enters a dormant growth phase during this time, resulting in little or no new growth. Since the plant requires less energy during this period, fertilization is unnecessary.

Which fertilizer is best for my Lipstick tree?

To ensure proper nourishment for a Lipstick tree, the fertilizer should possess a specific combination of nutrients, each being present in relatively small quantities. Ideally, the N-P-K ratio of the fertilizer should be 3-1-2. Nevertheless, a general-purpose fertilizer with a balanced nutrient blend can also be effective in certain instances. Regardless of the fertilizer type, the ratio representing the volume of each nutrient should be 3 or lower. The fertilizer can be either granular or liquid-based. If opting for a liquid-based one, it is advisable to dilute its strength by half. While granular fertilizer has few disadvantages, using liquid fertilizer is generally more practical, especially when watering the Lipstick tree.

How do I give my Lipstick tree the nutrients it needs?

One of the easiest ways to fertilize a Lipstick tree is to feed it whenever you water it. To do this, gather your fertilizer and a water container, like a watering can. Mix the fertilizer with water to weaken its strength. Then, simply pour the water and fertilizer mixture onto the soil, ensuring it reaches the roots. Alternatively, you can use a granular fertilizer. Just sprinkle some on the soil where your Lipstick tree resides. Granular fertilizers are typically slow-release, so you won't need to fertilize as often compared to using a liquid fertilizer. In either case, it's beneficial to water while you feed your Lipstick tree.

🪴 Pot & Repot Every 12 months
Suggested frequency: Every 12 months
✂️ Pruning

Pruning the lipstick tree from early to late winter can significantly improve its health and appearance. By removing dead branches and thinning crowded areas, you enhance airflow and light penetration, which promotes better growth. Making moderate cuts encourages strong flowering and seed production, while avoiding over-pruning ensures that the plant retains its ornamental and functional benefits.

🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity

Characteristics

Plant Type
Tree, Shrub
Life Cycle
Perennial
Genus
Bixa
Family
Bixaceae
Hardiness Zone
10-12
Mature Height
6.1 m to 10.06 m
Mature Spread
3.96 m
Leaf Color
Green
Leaf Type
Evergreen
Flower Color
Pink, White
Flower Size
4.06 cm to 5.08 cm
Bloom Time
Mid summer, Late summer
Planting Time
Summer
Harvest Time
Early spring, Mid spring, Mid summer, Late summer, Fall, Winter
Native Area
Chile, Belize, Honduras, Mexico, Guatemala, Peru, Panama, Uruguay, Colombia, Paraguay, Argentina, Bolivia, Venezuela, Brazil, Guyana, El Salvador, Nicaragua, Suriname, Costa Rica

Tags (6)

Common Names (14)

en Lipstick tree
en Achiote
en Annatto
en Arnatto
en Roucou
en Roucu
en Rucu
en Anatto
en Blood tree
en Annato
en Arnotto
en Urucum
en Woucou
en Lipstick plant